Features:Paddle-style grips provide quick, clean, and consistent placement of earplugsNo-roll design keeps earplugs, and ears clean, even when fingers or gloves are dirtyEarplug design keeps tip clean even if hands are dirtySlow recovery foam easily goes into earcanal and then seats and stays in placeCord allows earplugs to be stored conveniently around the neck in between usesNoise reduction rating (NRR) 25 dB CSA Class ALHow to useFitting Instructions:Insert rounded tip into ear canal while pulling ear outward & upward with opposite hand. Adjust for greatest noise reduction.Check Fit after inserting plugPull plug stem gently. Plug should not come out of the ear easily. If it does, remove plug & repeat fitting.Listen to steady loud noise with plugs in both ears. Cover ears with tightly cupped hands. Noise should sound about the same whether or not ears are covered.Wipe earplugs with a clean cloth when dirty.Replace if earplugs are damaged or when they are no longer soft and pliable.CAUTION: For greater comfort and safety, remove plug slowly with twisting motion to gradually break the seal. Advanced "no-roll" corded foam earplugs with paddle-style grips make getting a good fit easier than ever. Unique foam formula allows earplug insertion without rolling to keep fingers, plugs, and ears clean. Slow recovery foam inserts easily, then seats and stays in place for comfortable hearing protection. The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.